Hoisting apparatus.



No. 707,660. Patented Aug. 26, i902.

E. H. WATLINGTN.

' HOISTING APPARATUS.

(Application filed Jan. 13, 1902.)

(N o M u d el.)

me mms frias co., Pnavauruo. wAsmNGmN. D. c.

UNrrn Smarts `PATENT OFFICE.

SPRAGUE ELECTRIC COMPANY, TION OF NEW JERSEY.

oF NEW YORK, N. Y.,`A CORPORA- HOISTlNG APPARATUS.

SPECIFICATION forming part of Letters Patent No. 707,660, dated August2e, 1902.

Application nea January 13, 1902. seria No. 89,450. oto model.:

To alt whom, t may concern.-

Beit known that I, EDGAR H. WATLING- TON, a citizen of the UnitedStates, residing at Ridgewood, New Jersey, have invented certain new anduseful Improvements in Hoisting Apparatus,of which the following is afull, clear, and exact description.

My invention relates to cranes or hoists.

Among the main objects of my invention is to provide a means whereby thecrane may be moved bodily or the hoisting apparatus moved relatively tothe body of the crane and so arrange the various controllers by whichthe various movements are effected that they are all within easy reachof a single operator.

Incidentally other objects are attained by the novel and usefulconstruction and arrangement of the parts hereinafter fully described.

In the drawings, Figure lis aconventional view, in side elevation, of myimproved apparatus. Fig. 2 is a relatively enlarged end view of thehoisting apparatus, taken from the left as appearing in Fig. 1, aportion of the crane directly adjacent thereto being shown in section.

In the drawings, 1 is a carrier.

2 is a boom, which in this particular construction is hinged thereto andprojects outwardly therefrom. The carrier l is provided with suitablerolls or wheels 3 3, which move upon suitable tracks 4.- on asupporting-wall 5, arranged to properly support the carrier and permitit to be moved back and forth, as desired.

6 is a suitable bracket or arm projecting from the lower part of thecarrier upwardly to the boom 2 and aording an additional support orbrace for the same.

7 is a toothed rack carried by the wall 5.

8 is a gear-wheel meshing therewith and revolved in any suitable way byamotor 9. In the drawings reducing-gears are interposed between the motorand the said gear 8. The construction and arrangement of Vreducinggearsneed not be specifically described, since it is well known and noinvention is claimed of the particular form thereof. The direction ofrotation of the armature of the motor9 determines the direction oftravel of the crane l on-the tracks 4. The boom 2 is preferablyconstructed of angle-iron, as best shown in Fig. 2, in which it will beseen that the boom is made up of two channeled-iron members placed sothat the channels face each other. The lower flanges of these membersmay serve as tracks for wheels 10 10 or separate tracks may be addedthereto. The wheels 10 support a truck carrying a hoisting apparatus.The truck may move back and forth upon the boom 2. said truck comprisesa wheel 1l, carrying an endless cord, belt, or chain 12, which may bemanually controlled. The wheel 11 is mounted on the truck and rotates abevel-gear 12, meshing with a bevel-gear 13, in turn rotat ing aspur-gear 14, meshing with spur-gear 15 upon one of the wheels 10. Byturning the wheel 11 in one direction or the other the hoistingapparatus may be moved to any desired position on the boom 2.

1G is a controller of any well-.known and desirable type for motor 9,said controller being carried by the truck carrying the hoistingapparatus.

17 is a cord, chain, or belt whereby the controller 16 maybe operated.By operating the controller 16 the position of the carrier l relativelyto the track 4 may be varied at will.

18 isA a hoisting-chain passing over a suitable drum, which may berevolved by motor 19. v2O is a controller of any well-known anddesirable type therefor, and 21 a cord, belt, or chain whereby thecontroller 2O may be 0p- 22 is a drum or pulley to which theoperating-cord 21 may be attached. The cords7 belts, or chains 17, 2l,and 12 are located within easy reach of a single operator standingunderneath the truck. A single operator may attach the hoisting-chain tothe load and control the apparatus so as' to lift or transport the sameto any desired point without leaving the immediate vicinity of4 saidload, a feature of great advantage and desirability.

One of the many convenient means for leading the circuits to the motorsis illustrated, in which it will be seen that A, B, C,

One convenient means for moving and D are conductors conveniently placedadjacent to the carrier l, and A B C D are brushes or contact devicesadapted to sweep along the aforesaid conductors, respectively, as thecarrier 1 is moved to and fro. The circuits may be led from the brushesA B C D to the motors 9 and 19 and the controllers therefor. Asubstantially similar arrangement of conductors and brushes may beprovided upon the boom 2 and the truck carrying the hoisting apparatus.This arrangement is best shown in Fig. 2. The conductors may runlongitudinally of the boom 2 and may be supported on suitable brackets25. Contact-brushes corresponding to the brushes A B C D may be carriedby the truck in such manner as to preserve contact with said conductors.

What I claim is- 1. In a device of the character described, a carrier, aboom carried thereby, a truck riding upon said boom, a motor carried bysaid carrier, another motor carried by said truck,

means to shift the position of the truck upon said boom said means beingcarried by said truck, controllers for said motor said controllers beingalso carried by said truck and depending operating-cords for saidcontrollers and for said shifting means.

2. In a device ot' the character described, a traveling carrier, a motormounted thereon for operating the same, a boom carried by said carrier,a truck riding upon said boom, a motor carried by said truck foroperating said truck, a hoisting apparatus carried by said truck,mechanism for operating said hoisting apparatus, controllers carried bysaid truck for operating the said motors and the said hoisting operatingmechanism, and depending operating-cords for said controllers and saidhoisting mechanism, substantially as described.

EDGAR H. WATLINGTON. Witnesses:

L. VREELAND, ROBT. S. ALLYN.

